Renesas Asynchronous SH7145F Bedienungsanleitung PDF herunterladen (Seite 15)

SH7145F

Asynchronous Serial Data Transmission

REJ06B0355-0100O/Rev.1.00 March 2004 Page 13 of 16

6. Program Listing

/**************************************************************/

/* SH7145F Application Note */

/* */

/* Function */

/* :SCI1 */

/* :Asynchronous Transmit Mode */

/* External input clock :12.5MHz */

/* Internal CPU clock :50MHz */

/* Internal peripheral clock :25MHz */

/* */

/* Written :2003/7 Rev.1.0 */

/**************************************************************/

#include "iodefine.h"

#include <machine.h>

/*------------ Symbol Definition ----------------------------------------------*/

#define TRANS_DATA_1 0x61 /* Transmit Data 1 */

#define TRANS_DATA_2 0x62 /* Transmit Data 2 */

#define TRANS_DATA_3 0x63 /* Transmit Data 3 */

/*------------ Function Definition --------------------------------------------*/

void main(void);

void init_sci(void);

void trans_sci(char c);

void dummy_f(void);

/*------------ RAM allocation Definition --------------------------------------*/

/**************************************************************/

/* main Program */

/**************************************************************/

void main( void )

{

init_sci(); /* Initialize SCI */

trans_sci(TRANS_DATA_1); /* Data transmit function call */

trans_sci(TRANS_DATA_2); /* Data transmit function call */

trans_sci(TRANS_DATA_3); /* Data transmit function call */

while(1); /* LOOP */

}

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Renesas Asynchronous SH7145F Bedienungsanleitung Seite 15